gdemetrious4188 gdemetrious4188
  • 17-03-2021
  • Mathematics
contestada

Can someone help me

Can someone help me class=

Respuesta :

cairde
cairde cairde
  • 17-03-2021

Answer:

∠BDC=43°

Step-by-step explanation:

Since ABCD is a rectangle, ∠ADC=90

∠ADC=∠BDC+∠ADB

90=(7x+1)+(9x-7)

90=16x-6

16x=96

x=6

∠BDC=7x+1

=7(6)+1

=42+1=43

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